Controller Procedures

Description of airspace and sectors

The Gander and Shanwick OCC are each responsible for half of the north Atlantic HLA airspace (border is at 30W°).
Both OCAs have been divided into various sectors to optimise traffic management and controller workload.

Sector

Frequency

Identifier

Code

Gander Oceanic clearance

128.450 / 135.450

CZQX_OC_CTR

OC

Gander FSS (southern tracks)

122.370 (12237.0 kHz)

CZQX_S_CTR

FSS-S

Gander FSS (northern tracks)

126.900 (12690.0 kHz)

CZQX_N_CTR

FSS-N

Gander FSS (west airspace)

127.100 (12710.0 kHz)

CZQX_W_CTR

FSS-W

Shanwick Oceanic clearance

127.650 / 123.950

EGGX_OC_CTR

OCD

Shanwick FSS (southern tracks)

124.175 (12417.5 kHz)

EGGX_S_CTR

ORS

Shanwick FSS (northern tracks)

120.350 (12035.0 kHz)

EGGX_N_CTR

ORN

Shanwick/Gander FSS (general position)

127.900 (12790.0 kHz)

EGGX_SG_CTR

ORS

The first position to be opened is always Shanwick/Gander FSS (EGGX_SG_CTR), followed by Shanwick FSS (EGGX_S_CTR) or Gander FSS (CZQX_S_CTR).
Agree with EGGX_SG_CTR which position SG prefers. Prior permission required for Gander FSS (CZQX_W_CTR) by EGGX-Staff.